Welcome to my IUMA site! PWM- Project: My tunes are what I like to call "Foundations". Most don't have leads or vocals...I'm leaving that up to the pros! If you live near the DFW area and can sing or play lead, shoot me an email. Additional Credits: "Still Water"- Todd Farley on guitar. "Funkier Than You"- Mahbod Heshmat created the beat and effects. I do all other instruments on all other tunes. Please enjoy our music and be sure to tell a friend. I have MANY... Topic: PWM Project
Hailing from Matanzas, Cuba, with a Masters degree in Music Pedagogy from the Higher Institute of Art in Havana, DJ PWM began his career as a percussionist performing with some of Cuba's Latin Jazz Masters including Ruben Gonzalez of the Buena Vista Social Club, Chucho Valdez, and Helario Duran. One of his most inspiring moments was playing with Dizzy Gillespie and Arturo Sandoval during a workshop at the National School of Art in Havana, at the age of 18. In 1992 while performing at the world... Topic: DJ PWM
A position sensorless control method for PM synchronous motors is proposed in this paper. It relies on the magnetic saliencies to estimate the position of the rotor. In usual sensorless methods, a signal is injected in the αβ or dq components. In the proposed method, the signal is injected in the ero-sequence component. The high-frequency inherent zero-sequence component produced by a space-vector pulse width modulator (PWM) is used. In this way, no modification is required in the PWM, even... Topics: DTC, PWM, PMSM
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electromechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage. BLDC motor is used in many wide range applications. In Brush less DC motor several cases are used in those techniques they are inverter and PWM inverter technique. The brushless dc motor used the... Topics: PMBLDC, PWM Inverter, VFD
This paper deals with the control of three phase PWM rectifier model using SVM based current controller. In many power electronics control applications the rectifier plays vital role during AC/DC power conversion. The SVM-based HCC scheme is simulated using MATLAB simulink. The technique combines the best features of the SVM and HCC techniques. The controller determines a set of state space vectors from a region detector and then applies a space vector selected according to HCC. A set of space... Topics: PWM Rectifier. SVM, HCC
Bilboko IITUEn (UPV/EHU) Instrumentazio Elektronikoa ikasgairako egindako aurkezpenean (korronte zuzeneko motorra sistema digital batez kontrolatzeko sarrera-irteerak aztertzen dituena) H-zubiaren funtzionamendu egoerak eta sortu daitezkeen glitch-ak azaltzeko erabilitako bideoak. http://www.slideshare.net/opositivo/cc-motoreak-sistema-digitalekin-kontrolatzeko-sarrerairteerak-pwm-eta-encoderak Topics: hzubia, hzbrigde, pwm, dc, control
Le modulazioni impulsive Indice Introduzione La modulazione PAM Cenni teorici Simulazione con il computer di un modulatore PAM La modulazione PWM Cenni teorici Simulazione con il computer di un modulatore PWM Modulazione della durata degli impulsi con generatore a dente di sega e comparatore Modulazione della durata degli impulsi con timer 555 La modulazione PPM Cenni teorici Simulazione con il computer di un modulatore PPM Modulazione della posizione degli impulsi partendo da un segnale PWM:... Topics: modulazioni, impulsive, PAM, PWM, PPM
This paper presents a five-phase induction motor drive system fed from a three-to-five-phase matrix converter. This is a new concept of generating variable voltage and variable frequency five-phase output using a special matrix converter. This matrix converter is proposed recently which transform the available three-phase supply to five-phase supply. Simple carrier-based PWM scheme with enhanced approach is employed to control the output of the matrix converter. Enhanced approach is utilized so... Topics: Carrier-based PWM, Five-phase, Matrix Converter
Every vehicle has a standard of emission of gases, but the difficulty occurs when the emission is beyond the standardized values. The prime reason for this violation of emission level being the incomplete combustion of fuel supplied to the engine which is due to the improper maintenance of vehicles. This emission from vehicles cannot be completely avoided, but it can be definitely controlled. The aim of this paper is to monitor and control the pollutants in the vehicle by using the pollution... Topics: Gas sensors, GSM, PWM and controller, ijaet
In this paper, a simple boost control with independence relation between modulation index and shoot‐through duty ratio (modified simple boost) for z‐source inverter is simulated and analysed using MATLAB/Simulink, as well as the simple boost and the maximum boost control methods. The simulation shows that the modified simple boost control, as well as the maximum boost control could utilize high modulation index to generate output voltage that requires high voltage gain. In turn, this may... Topics: Z‐source Inverter, PWM, Control, Fuel Cell
The distortion obtained in the Uninterruptible Power Supply (UPS) output due to increasing use of rectifiers in critical loads an effective strategy is needed to control the output of UPS system. Sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) are the most popular PWM techniques for three phase UPS system. As compared to SPWM, SVPWM is much effective in reducing harmonics and distortions caused by highly non linear loads. In this paper space vector based... Topics: UPS, non linear load, Space Vector PWM
his paper describes the testing of boost rectification required in the back-to- back converter used in doubly fed induction gen erator (DFIG) based wind energy conversion systems (WECS). In this work testing is carried out on the single phase rectifier section of back-to-back converter. Detail design of components of back to back converter is explained. The hardware module of this back-to-back converter is fabricated in the departmental laboratory. dSPACE and Microcontroller 8051 is used for... Topics: Boost rectifier, DFIG, RSC, GSC, PWM, IGBT, WECS
If you looking for active front-end converter then our agency PWM converter here to fulfill you requirements. We're also providing products like Regenerative inverter, Regenerative VFD, Regenerative drive . http://www.pwmconverter.com Topics: PWM Converter in india, Active Front-end Converter india
In this paper, a single-phase PV inverter applying a dual boost converter circuit inverter is proposed for photovoltaic (PV) generation system and PV grid connected system. This system is designed to improve integration of a Single phase inverter with Photovoltaic panel. The DC 24V is converted into to 86V DC and then 86V DC to 312V DC. The 312 V DC is then successfully inverted to AC 220V. Hence solar energy is powerfully converted into electrical energy for fulfilling the necessities of the... Topics: H Bridge inverter, dual boost converter, PWM, SPWM
byR.Ithaya,V.Ponselvan Udaya School of Engineering, India,IJRDE
Thyristor controlled method in AC voltage regulator has very low dynamic response and discharge large amount of harmonic components. PWM Controlled Buck-Boost AC Voltage Regulator can efficiently and economically be used in low and medium power applications in the advantage of design simplicity with operation reliability in a clear withstand of naturally commutated schemes. It has very fast response speed, low harmonics component distortion and high power factor. This paper propose a voltage... Topics: PWM, ac, voltage regulator, buck-boost, controlled, IJRDE
In this paper a simple power factor correction PFC circuit was designed, simulated and tested for AC/DC converter which generates input current harmonics due to its non-linear characteristics. PFC was achieved through current harmonics mitigation by using PWM boost regulator. The circuit utilizes the charging and disc arching increments of boost inductor current to shape a sinusoidal input current. Inductor current was controlled by means of PWM controller. The controller accepts two feedback... Topics: PFC Circuit, AC/DC Converter, PWM Boost Regulator
Bell System Technical Journal, 52: 10. December 1973 pp 1811-1819. Stability of a General Type of Pulse-Width-Modulated Feedback System. (Walk, R.; Rootenburg, J.) Topics: stability, gpwm, pwm, system, popov, ieee, feedback, modulator, skoog, geometric, absolutely...
Modern power systems are highly complex and are designed as such to fulfil the growing demands of power with better power quality. And electrical power quality had obtained more attention in power engineering in recent years . But due to faults in power systems many power quality problems including voltage sags and swells, harmonics and reactive power burden etc,. are taking place which are effecting the power quality and stability of power supply etc,. The fuzzy logic controller can easily... Topics: Quality, Power Quality Problems, Fuzzy Logic Controller, CMLI, FACT Device and PWM Technique
Today in industries, 3-ph IM are being used on very wide scale. So, its speed control according to the specific requirement is very important. Also many times, 3-ph IM are to be operated with easily available 1-ph supply. For this, proposed mechanism of speed control here is very efficient and reliable. At input terminal, high performance Two stage Interleaved power factor correction technique (IPFC) with boost topology operating with discontinuous current conduction is used. With this circuit,... Topics: Two Stage Boost Topology, Discontinuous Current Conduction, IPFC, Sine-Wave PWM, 3-ph Bridge...
Multi-level converter technology has emerged as a very important alternative in the area of high-power medium voltage energy control. Two level inverters are those which creates a voltage or a current with levels either 0 or ±V dc. To achieve an eminence output voltage or a current waveform with a lowest amount of ripple content, they need high switching frequency. When working at high frequency, high power and high voltage applications these two level inverters have a few restrictions. The... Topics: Cascaded H-Bridge (CHB) Multilevel Inverter (MLI), Total Harmonic Distortion (THD), Pulse Width...
The paper elaborate finite set model based predictive current control of a seven-phase voltage source inverter. The current control is carried out considering a finite set of control actions. The space vector model of a seven-phase voltage source inverter (VSI) yields 27 = 128 space voltage vectors, with 126 active and two zero vectors. The control method described in this paper discard some switching states from the whole set and employs reduced number of switching states to track the... Topics: Multi-phase, seven-phase, model predictive control, space vector, PWM, Total harmonic distortion.
Cascaded H-bridge multilevel inverter increases the number of output voltage levels by connecting H-bridge cells in series. More H-bridge cells ensure high qualified output voltage waves similar to sinusoidal wave and increase redundancy in the viewpoint of safety. However, the increase of the number of H-bridge cells grows up the possibility of failure of the system due to the increased circuit components and complex control signals. Cascaded H-bridge multilevel inverter can apply various... Topics: Fault-Tree Analysis (FTA), Multilevel Inverters, Pulse Width Modulation (PWM) & Total Harmonic...
The recent development of new power semiconductor technologies capable of handling higher voltage and current ratings has helped the consolidation of multilevel topologies in medium-voltage & high voltage applications such as drive controlling, FACTS Controllers, HVDC systems etc. This paper presents a new circuit configuration of single-phase multilevel current-source inverter (CSI). In this new topology, a basic H-bridge CSI working as a main inverter generates a multilevel current... Topics: Current-Source Inverter (CSI), H-Bridge, Pulse Width Modulation (PWM), Inductor Cell, Multilevel
byGianluca Sena, Roberto Marani and Anna Gina Perri
In this paper the state of art of semiconductors devices for Industrial Pulse-Width Modulation (PWM) Inverters is presented. The last generations of Insulated Gate Bipolar Transistors (IGBTs), Silicon Carbide (SiC) MOSFETs and Gallium Nitride (GaN) Transistors are introduced and analysed. At last a comparison between Si-based IGBT and SiC MOSFET, obtained by SPICE simulations, is presented in order to identify the device which makes the PWM inverter more efficient. Topics: Power semiconductor devices, PWM Inverter, SiC MOSFETs, IGBTs, SPICE simulation, ijaet
The increasing use of medium voltage drives and high power equipment required to detailed study on switching method and topology of multi-level inverters. In Asymmetric Cascaded HBridge topologies that have unequal input dc voltages and different devices in various parts of the CHB inverter, signify significant improvements for medium-voltage industrial drives. A number of modulation strategies are used in multi-level power conversion applications. In multi-carrier switching method for... Topics: Multi-level inverter, Asymmetric Cascaded H-Bridge, level shifted multi-carrier, combined PWM, THD.